Water

Water

Water is a chemical compound with the chemical formula H20. A water molecule contains one hydrogen atom and two oxygen atoms. Water is a liquid at standard ambient temperature and pressure though it can be a solid (ice)in low temperatures or evaporate into water vapor a higher temperatures.

Industry: Natural environment

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Water

backflow/back siphonage

Natural environment; Water

A reverse flow condition created by a difference in water pressures that causes water to flow back into the distribution pipes of a drinking water supply from any source other than the intended one.

background level

Natural environment; Water

1. The concentration of a substance in an environmental media (air, water, or soil) that occurs naturally or is not the result of human activities. 2. In exposure assessment the concentration of a ...

backyard composting

Natural environment; Water

Diversion of organic food waste and yard trimmings from the municipal waste stream by composting hem in one's yard through controlled decomposition of organic matter by bacteria and fungi into a ...

barrel sampler

Natural environment; Water

Open-ended steel tube used to collect soil samples.

bacteria (singular bacterium)

Natural environment; Water

Microscopic living organisms that can aid in pollution control by metabolizing organic matter in sewage, oil spills or other pollutants. However, bacteria in soil, water or air can also cause human, ...

confidential business information (cbi)

Natural environment; Water

Material that contains trade secrets or commercial or financial information that has been claimed as confidential by its source (e.g. a pesticide or new chemical formulation registrant). EPA has ...

confidential statement of formula (csf)

Natural environment; Water

A list of the ingredients in a new pesticide or chemical formulation. The list is submitted at the time for application for registration or change in formulation.